echo_tts

Synthesize speech from text (needs echo key) (0 sats/call; free tier 100 calls/mo)

SERVERHyperion SOURCEhttps://hyperion.thetempleofdoom.com/mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/com-thetempleofdoom-hyperion-hyperion/echo-tts.md

WHAT IT DOES

What echo_tts does on Hyperion

AI agents call echo_tts to retrieve information from Hyperion without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why echo_tts is rated Low

Even though echo_tts only reads data, uncontrolled read access leaks sensitive information and racks up API costs: an agent caught in a retry loop can make thousands of calls a minute without anyone noticing.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs echo_tts safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Hyperion, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For echo_tts, this is the rule to start with:

echo_tts Allowed

echo_tts is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "echo_tts": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Hyperion, apply this rule, and every echo_tts call is checked against it from then on.

FAQ

Questions about echo_tts

What does the echo_tts tool do? +

Synthesize speech from text (needs echo key) (0 sats/call; free tier 100 calls/mo). It is categorised as a Read tool in the Hyperion MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on echo_tts? +

Register the Hyperion MCP server in PolicyLayer and add a rule for echo_tts: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Hyperion. Nothing to install.

What risk level is echo_tts? +

echo_tts is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit echo_tts? +

Yes. Add a rate_limit block to the echo_tts rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block echo_tts completely? +

Set action: deny in the PolicyLayer policy for echo_tts. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides echo_tts? +

echo_tts is provided by the Hyperion MCP server (https://hyperion.thetempleofdoom.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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